FI76344C - Förfarande för framställning av 1,4:3,6-dianhydro-D-glusitol-5-nitrat (isosorbid-5-nitrat) - Google Patents
Förfarande för framställning av 1,4:3,6-dianhydro-D-glusitol-5-nitrat (isosorbid-5-nitrat) Download PDFInfo
- Publication number
- FI76344C FI76344C FI812374A FI812374A FI76344C FI 76344 C FI76344 C FI 76344C FI 812374 A FI812374 A FI 812374A FI 812374 A FI812374 A FI 812374A FI 76344 C FI76344 C FI 76344C
- Authority
- FI
- Finland
- Prior art keywords
- dianhydro
- glucitol
- nitrate
- acetate
- mixture
- Prior art date
Links
- 229910002651 NO3 Inorganic materials 0.000 title claims abstract description 20
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 27
- KLDXJTOLSGUMSJ-JGWLITMVSA-N Isosorbide Chemical compound O[C@@H]1CO[C@@H]2[C@@H](O)CO[C@@H]21 KLDXJTOLSGUMSJ-JGWLITMVSA-N 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 25
- YWXYYJSYQOXTPL-SLPGGIOYSA-N isosorbide mononitrate Chemical compound [O-][N+](=O)O[C@@H]1CO[C@@H]2[C@@H](O)CO[C@@H]21 YWXYYJSYQOXTPL-SLPGGIOYSA-N 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 7
- ASUQMWUAFHPXOG-ULAWRXDQSA-N [(3r,3ar,6s,6ar)-3-hydroxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-6-yl] acetate Chemical compound O[C@@H]1CO[C@@H]2[C@@H](OC(=O)C)CO[C@@H]21 ASUQMWUAFHPXOG-ULAWRXDQSA-N 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 239000003054 catalyst Substances 0.000 claims abstract description 4
- 230000007062 hydrolysis Effects 0.000 claims abstract description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 3
- 150000007529 inorganic bases Chemical class 0.000 claims abstract description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 28
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000011877 solvent mixture Substances 0.000 claims description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 2
- 230000021736 acetylation Effects 0.000 claims description 2
- 238000006640 acetylation reaction Methods 0.000 claims description 2
- -1 organic base 1,4: 3,6-dianhydro-D-glucitol-5-nitrate Chemical class 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 1
- 230000000397 acetylating effect Effects 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 238000004061 bleaching Methods 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000010790 dilution Methods 0.000 claims 1
- 239000012895 dilution Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- NEZQWZBCEHOWJS-UTINFBMNSA-N [(3s,3ar,6r,6ar)-6-acetyloxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-3-yl] acetate Chemical compound CC(=O)O[C@H]1CO[C@@H]2[C@H](OC(=O)C)CO[C@@H]21 NEZQWZBCEHOWJS-UTINFBMNSA-N 0.000 abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 229960002479 isosorbide Drugs 0.000 description 7
- 229960003827 isosorbide mononitrate Drugs 0.000 description 7
- 238000006396 nitration reaction Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229960000583 acetic acid Drugs 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 239000012362 glacial acetic acid Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- YWXYYJSYQOXTPL-JGWLITMVSA-N [(3r,3ar,6s,6as)-3-hydroxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-6-yl] nitrate Chemical compound [O-][N+](=O)O[C@H]1CO[C@@H]2[C@H](O)CO[C@@H]21 YWXYYJSYQOXTPL-JGWLITMVSA-N 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 239000005457 ice water Substances 0.000 description 3
- MOYKHGMNXAOIAT-JGWLITMVSA-N isosorbide dinitrate Chemical compound [O-][N+](=O)O[C@H]1CO[C@@H]2[C@H](O[N+](=O)[O-])CO[C@@H]21 MOYKHGMNXAOIAT-JGWLITMVSA-N 0.000 description 3
- KLDXJTOLSGUMSJ-BXKVDMCESA-N (3s,3as,6s,6as)-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-3,6-diol Chemical compound O[C@H]1CO[C@H]2[C@@H](O)CO[C@H]21 KLDXJTOLSGUMSJ-BXKVDMCESA-N 0.000 description 2
- YYROPELSRYBVMQ-UHFFFAOYSA-N 4-toluenesulfonyl chloride Chemical compound CC1=CC=C(S(Cl)(=O)=O)C=C1 YYROPELSRYBVMQ-UHFFFAOYSA-N 0.000 description 2
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000008101 lactose Substances 0.000 description 2
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000006188 syrup Substances 0.000 description 2
- 235000020357 syrup Nutrition 0.000 description 2
- 238000004809 thin layer chromatography Methods 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical compound CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 description 1
- 206010002383 Angina Pectoris Diseases 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 208000029078 coronary artery disease Diseases 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000802 nitrating effect Effects 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 229940103091 potassium benzoate Drugs 0.000 description 1
- 239000004300 potassium benzoate Substances 0.000 description 1
- 235000010235 potassium benzoate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- ZNCXUFVDFVBRDO-UHFFFAOYSA-N pyridine;sulfuric acid Chemical compound [H+].[O-]S([O-])(=O)=O.C1=CC=[NH+]C=C1 ZNCXUFVDFVBRDO-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Saccharide Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Medicinal Preparation (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3028873A DE3028873C2 (de) | 1980-07-30 | 1980-07-30 | Verfahren zur Herstellung von 1,4 zu 3,6-Dianhydro-D-glucit-5-nitrat (Isosorbid-5-nitrat) |
| DE3028873 | 1980-07-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI812374L FI812374L (fi) | 1982-01-31 |
| FI76344B FI76344B (fi) | 1988-06-30 |
| FI76344C true FI76344C (sv) | 1988-10-10 |
Family
ID=6108470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI812374A FI76344C (sv) | 1980-07-30 | 1981-07-29 | Förfarande för framställning av 1,4:3,6-dianhydro-D-glusitol-5-nitrat (isosorbid-5-nitrat) |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4431829A (sv) |
| EP (1) | EP0045076B1 (sv) |
| JP (1) | JPS5753489A (sv) |
| AT (1) | ATE4458T1 (sv) |
| CA (1) | CA1196631A (sv) |
| CS (1) | CS228147B2 (sv) |
| DD (1) | DD201597A5 (sv) |
| DE (2) | DE3028873C2 (sv) |
| ES (1) | ES8205805A1 (sv) |
| FI (1) | FI76344C (sv) |
| HU (1) | HU189526B (sv) |
| IL (1) | IL63464A (sv) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3102947A1 (de) * | 1981-01-29 | 1982-09-02 | Heinrich Mack Nachf., 7918 Illertissen | Verfahren zur herstellung von isosorbid-5-nitrat |
| DE3117612A1 (de) * | 1981-05-05 | 1982-11-25 | Cassella Ag, 6000 Frankfurt | Verfahren zur herstellung von isosorbid-5-nitrat |
| DE3124410A1 (de) * | 1981-06-22 | 1983-01-05 | Heinrich Mack Nachf., 7918 Illertissen | Verfahren zur herstellung von isosorbid-2-nitrat |
| DE3128102A1 (de) * | 1981-07-16 | 1983-02-03 | Cassella Ag, 6000 Frankfurt | Verfahren zur herstellung von isosorbid-2-acylaten |
| JPS5818385A (ja) * | 1981-07-27 | 1983-02-02 | Toa Eiyou Kagaku Kogyo Kk | イソソルビド−５−ニトレ−トの製造法 |
| DE3229412A1 (de) * | 1982-08-06 | 1984-02-09 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von dianhydrohexitol-gemischen aus hexitolen, dianhydro-idit enthaltende dianhydro-hexitol-gemischen und ihre verwendung zur herstellung von polymeren |
| DE4410997A1 (de) * | 1994-03-30 | 1995-10-26 | Isis Pharma Gmbh | Pharmazeutische Zubereitungen und Arzneistoffe zur Prävention und Behandlung endothelialer Dysfunktionen |
| DE19726812A1 (de) * | 1997-06-25 | 1999-01-07 | Isis Pharma Gmbh | Neue Derivate des Pentaerythrits, deren Herstellung und Verwendung sowie Intermediate zur Synthese derselben |
| DE102008050597A1 (de) | 2008-10-09 | 2010-04-15 | Actavis Deutschland Gmbh & Co. Kg | Pharmazeutische Zubereitungen zur Anwendung in einem Verfahren zur therapeutischen Behandlung von Hörsturz |
| US10023586B2 (en) * | 2013-12-19 | 2018-07-17 | Archer Daniels Midland Company | Enhanced regio-selectivity in glycol acylation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3886186A (en) * | 1971-04-29 | 1975-05-27 | American Home Prod | Mononitrate esters of 1,4:3,6-dianhydro-d-glucitol |
| US4065488A (en) * | 1977-02-24 | 1977-12-27 | American Home Products Corporation | Process for preparing 1,4:3,6-dianhydro-D-glucitol 2-nitrate |
| DE2903927C2 (de) * | 1979-02-02 | 1981-03-12 | Sanol Schwarz-Monheim Gmbh, 4019 Monheim | Verfahren zur selektiven Herstellung von Isosorbid-5-nitrat |
-
1980
- 1980-07-30 DE DE3028873A patent/DE3028873C2/de not_active Expired
-
1981
- 1981-06-24 US US06/276,773 patent/US4431829A/en not_active Expired - Lifetime
- 1981-07-17 CA CA000381990A patent/CA1196631A/en not_active Expired
- 1981-07-25 AT AT81105882T patent/ATE4458T1/de not_active IP Right Cessation
- 1981-07-25 EP EP81105882A patent/EP0045076B1/de not_active Expired
- 1981-07-25 DE DE8181105882T patent/DE3160767D1/de not_active Expired
- 1981-07-27 DD DD81232126A patent/DD201597A5/de unknown
- 1981-07-28 JP JP56117219A patent/JPS5753489A/ja active Granted
- 1981-07-29 IL IL63464A patent/IL63464A/xx not_active IP Right Cessation
- 1981-07-29 CS CS815771A patent/CS228147B2/cs unknown
- 1981-07-29 HU HU812216A patent/HU189526B/hu unknown
- 1981-07-29 FI FI812374A patent/FI76344C/sv not_active IP Right Cessation
- 1981-07-30 ES ES504449A patent/ES8205805A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5753489A (en) | 1982-03-30 |
| DE3028873C2 (de) | 1983-10-27 |
| FI76344B (fi) | 1988-06-30 |
| DD201597A5 (de) | 1983-07-27 |
| HU189526B (en) | 1986-07-28 |
| ES504449A0 (es) | 1982-08-16 |
| CA1196631A (en) | 1985-11-12 |
| IL63464A (en) | 1985-02-28 |
| EP0045076A1 (de) | 1982-02-03 |
| ES8205805A1 (es) | 1982-08-16 |
| JPH0250908B2 (sv) | 1990-11-05 |
| DE3160767D1 (en) | 1983-09-22 |
| FI812374L (fi) | 1982-01-31 |
| DE3028873A1 (de) | 1982-02-11 |
| CS228147B2 (en) | 1984-05-14 |
| EP0045076B1 (de) | 1983-08-17 |
| IL63464A0 (en) | 1981-10-30 |
| ATE4458T1 (de) | 1983-09-15 |
| US4431829A (en) | 1984-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3450693A (en) | Method of synthesizing adenosine,2',3'-o-isopropylidene-adenosine and intermediates thereof | |
| FI76344C (sv) | Förfarande för framställning av 1,4:3,6-dianhydro-D-glusitol-5-nitrat (isosorbid-5-nitrat) | |
| SU776557A3 (ru) | Способ получени оптически активных антрациклинонов | |
| US4680399A (en) | Process for the isolation and purification of podophyllotoxin | |
| CS208199B2 (en) | Method of preparation of the 1,4,3,6-dianhydro-d-glucitol-2-nitrate | |
| US4371703A (en) | Process for the production of isosorbide-5-nitrate | |
| EP0080229B1 (en) | Salicylic derivatives of n-acetylcysteine | |
| US9376410B2 (en) | (2R)-2-deoxy-2,2-disubstituted-ribono-1,4-lactone and preparation method and use thereof | |
| EP2817319B1 (en) | Novel method for manufacturing of ciclesonide | |
| US4417065A (en) | Process for the preparation of isosorbide 2-nitrate | |
| US3551454A (en) | Preparation of optically active (-)-zearalenone and intermediates therefor | |
| CN110407846B (zh) | 一种5-单硝酸异山梨酯的制备方法 | |
| US5212323A (en) | Process for producing 6-(3-dimethylaminopropionyl)forskolin | |
| CN114773405B (zh) | 一种莫那比拉韦的制备方法 | |
| US3022309A (en) | Berbine derivatives | |
| EP1902058A2 (en) | A process for preparation of methyl-(+)-(s)-alpha-(2-chlorophenyl)-6,7-dihydrothieno(3,2-c)pyridine-5(4h)-acetic acid methyl ester or salts thereof having higher chiral purity and products thereof | |
| US3317509A (en) | Process for the production of methyl nacyl-2, 3, 4, 7-tetra-o-acyl-beta-thiolincosaminides | |
| KR100474228B1 (ko) | 파크리탁셀의분리방법 | |
| CN116283627A (zh) | 一种美法仑杂质g的合成方法 | |
| GB2141717A (en) | 17-aza-androstane derivatives | |
| Dao et al. | Synthesis of 8-methyl-2-O-methyl-3, 5-O-(1-methyl ethylidene)-6, 7, 8, 9-tetradeoxy-D-gulo-6-nonenonic acid (6E)--lactone | |
| SU666184A1 (ru) | Способ получени 2,3-дидезокси3-фторпиримидиннуклеозидов или их ацилпроизводных | |
| EP0468444A1 (en) | Process for the preparation of 6-acyl, 7-acyl and 6,7-diacyl analogues of forskolin and intermediates thereof | |
| JPS5918392B2 (ja) | ５−ヒドロキシトリプトフアン骨格を有する化合物の製造方法 | |
| DK149956B (da) | Fremgangsmaade til fremstilling af bromholdige ergotalkaloider |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MA | Patent expired |
Owner name: BOEHRINGER MANNHEIM GMBH |